Improvement in combination-locks



skilled in the art to make and use the same, referencev To -all` fwhom 'it Imay concern dnirfl lteren anni @Wire Letters Patent No'. 93,747, dated August 17, 1869.

IMPROVEMENT IN ('1QIMIIBEI.'NATION-IILOCKS.

" The 'Schedule referred to in these Letten Patent and making part ofthe name.

Be it 'known that I, NICHOLAS REED, of Otisville, in the county of Orange, and State' of New York, have invented a new and improved Combination-Lock; and I-do hereby declare that the following is a full, clear, and exact description thereof, which will enable others being hadvto 'the accompanying drawing, forming part of this specification.

This invention relates to improvements in combination-locks, designed `to provide a ls imple and cheap lock for drawers, chests, and other similar articles.

lock.

Figure 2- represents a section ofthe salue, taken on the line x-x ofg. 1-` I Figure 3 represents a section on the line y-y of iig. 1 Figure 4 represents a' longitudinal section, taken on the line z-z of fig. 1.

Figure 5- represents a perspective view of the guard. Similar letters-of reference indicate corresponding parts.

-Arepresents au ordinary slide-bolt, and'lB, a lock? ing-bolt, sliding into a recessin the side of the bolt A", for locking. it. 1

The bolt B is provided with a series of studs, c, projecting from the' side in a row, and at calculated distancesapart.

D represents a series'of combination disks, placed on the bolt B, so as to rotate thereon, having notches at the axial holes,which, when adjusted to coincide withthe pins C, will permit the bolt to slide either way, but when any one is not in the said coincident position, will prevent the bolt from sliding. v. 'The letters-and iigures' on the faces of these disks, found standing in a line parallel with'the bolt B,.opf, posite any given point when the. said studs and notches are coincident, will'be the combination to be used for locking and unlocking.

For instance, in iig. 1, opposite the point X, will be observed 1 A 2 1 O, being the locking-combination of the adjustment, asrepresented in the. drawings."

Figure 1 represents a front view of my improved` Thev disks .are separated by ianges, E, of the case,

which provide spaces 'between the disks 'for the studs v G to permit theturning of 'the disks, to break up the locking-,combinationk after locking,or for'` establishing it again for unlocking and locking.

The head of the bolt Bis enlarged at F, and pro` vided with as manyradial holes G as there are letters- .o'r othercharacters on the faces of each disk, and the bolt .may be changed i`n its position, by withdrawing the screwed pin'H, 'of the thumb-slide I, by which the .boltis operated, from one hole' and inserting it in another.

.The said part'Kis heldin its place, iu combinationv with theother part of ,the"case, by screws L, shown in dotted lines in fig. 2.

For'holding the disks in position, after being set for locking or unlocking, I make transverse grooves across the faces' ofthe'disks between each letter or other character, and'provide a slide, N, with dovetailed flanges, O and 13for sliding over a dovetailed-shaped block, Q, at one end of the row' of disks, and so arranged rela- 'tivelyv thereto, that in moving the slide over the disks the. flange P t ereof will engagewiththc grooves M when they are rought coincident therewith. v

This slide, besides holding the disks in place, also hides the letters of the combination from observation by others while locking and unlocking. y The arms or pins of the bolt B need not necessarily be varranged iu a row, but may be placed irregularly around the surface'thereof..

Having thus described my invention, What I claim as new,and desire to -secure by Let ters Patent, is .v

The combination, with the dovetai] projection Q and the grooved disks, of the slide N substantially as speciied.

The' above specication of my invention signed by. me, this 2d day of April, 1869. 

